Football-shaped spa tub



FIG. 1 is a perspective view of a football-shaped spa tub;

FIG. 2 is a top plan view of the football-shaped spa tub;

FIG. 3 is a front elevation view of the football-shaped spa tub;

FIG. 4 is a rear elevation view of the football-shaped spa tub;

FIG. 5 is a left side elevation view of the football-shaped spa tub; and,

FIG. 6 is a right side elevation view of the football-shaped spa tub.

The matter delineated in broken lines illustrates portions of the football-shaped spa tub that form no part of the claimed ornamental design. 

CLAIM The ornamental design for a football-shaped spa tub, as substantially shown and described. 